In addition to Waze being owned by Google, as mentioned by others, Waze pops up ads in the middle of trips which should never be tolerated by users. Waze also tends to make bad traffic worse by directing cars off high-volume roads onto low-volume roads, distributing gridlock everywhere and encouraging people to drive through residential neighborhoods or other areas that cannot support this type of traffic. And finally, Waze is not a general purpose mapping application, but a very specific one for driving. I think that's enough from me on this. :-)